Abstract
We experimentally investigate the influence of the fourth-order dispersion (FOD) on the onset of scalar spontaneous modulational instability (MI) in a single-mode optical fiber. This study was performed in the normal dispersion regime of a dispersion-shifted fiber pumped by a quasi-continuous laser diode operating near the zero-dispersion wavelength. We experimentally demonstrate the evidence of a new MI spectral window due to the FOD effect in the normal dispersion regime. The effect of random fluctuations of the zero-dispersion wavelength along the fiber is considered for effective gain prediction. The measured modulation frequencies, which range from 5 up to 9 THz for an input power of 7 W, are in very good agreement with those obtained from the linear stability analysis. The FOD induced-MI can be used for broadband wavelength conversion. In addition it can be of a great interest for the generation of ultra-high repetition rate train of femtosecond pulses.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
